Home / 223,607.28-308,573.04-128,170.20

Finding the Fourth Proportional to 223,607.28, 308,573.04 and 128,170.20

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Solution

The fourth proportional to 223,607.28, 308,573.04 and 128,170.20 is: 176,872.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,607.28 : 308,573.04 = 128,170.20 : x
  2. Step 2: Convert to fraction form
    223,607.28/308,573.04 = 128,170.20/x
  3. Step 3: Cross multiply
    223,607.28x = 308,573.04 × 128,170.20
  4. Step 4: Simplify right side
    223,607.28x = 39,549,868,251.41
  5. Step 5: Solve for x
    x = 39,549,868,251.41/223,607.28
  6. Step 6: Final answer
    x = 176,872.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.